TY  - BOOK
AU  - Vizmuller, Peter
TI  - FILTERS WITH HELICAL AND FOLDED HELICAL RESONATORS
U1  - 621.3815324 
PY  - 1987///
CY  - Norwood
PB  - Artech House
KW  - Microwave Filters
KW  - Radio Resonators
ER  -